The records of 500 million customers of the hotel group Marriott International involved in a data breach

The records of 500 million customers of the hotel group Marriott International have been involved in a data breach. The hotel chain said the guest reservation database of its Starwood division had been compromised by an unauthorized party.

It said an internal investigation found an attacker had been able to access to the Starwood network since 2014. The company said it would notify customers whose records were in the database, reports BBC.

Starwood’s hotel brands include W Hotels, Sheraton, Le Méridien and Four Points by Sheraton. Marriott-branded hotels use a separate reservation system on a different network.

Marriott said it was alerted by an internal security tool that somebody was attempting to access the Starwood database. After investigating, it discovered that an “unauthorized party had copied and encrypted information”.

It said it believed its database contained records of up to 500 million customers.

For about 327 million guests, the information included “some combination” of:

name

address

phone number

email address

passport number

account information

date of birth

gender

arrival and departure information

It said some records also included encrypted payment card information, but it could not rule out the possibility that the encryption keys had also been stolen.

“We deeply regret this incident happened,” the company said in a statement.

“Marriott reported this incident to law enforcement and continues to support their investigation. The company has already begun notifying regulatory authorities.”

The company has set up a website to give affected customers more information. It will also offer customers in the US and some other countries a year-long subscription to a fraud-detecting service.

In a statement, the UK’s Information Commissioner’s Office said: “We have received a data breach report from Marriott involving its Starwood Hotels and will be making inquiries. If anyone has concerns about how their data has been handled they can report these concerns to us.”

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